Universal bottle heater



March 13, 1928. 1,662,555

E. WOJCIECHOWSKI UNIVERSAL BOTTLE HEATER Filed Dec. 18, 19 26 k An":

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' characters Patented Mar. 13, 1928.

UNITED STATES PATENT OFFICE.

UNIVERSAL BOTTLE HEATER.

Application filed December 18, 1928. Serial No. 155,716.

and durable in construction as well as efii-- cient in operation.

A further important object of the invention is to provide a heater of the above kind which may be cheaply and easily manufactured and assembled as well as readily taken apart for repair or renewal purposes.

A still further object is to provide simple and effective means for eilecting connection of the heating element with a source of electricit Other ObJQCtS will become apparent as the nature of the invention is better understood, and the same consists in'the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawing and claimed.

In the drawing, wherein like reference indicate corresponding parts throughout the several views,

Figure 1' is'an enlarged fragmentary view partly in elevation and partly in central longitudinal section, illustrating a heater constructed in accordance with the present invention and applied to the neck of the reservoir of at fountain syringe;

Figure 2 is an elevational view of a comlete fountain syringe equipped with a lieater constructed in accordance with Figure 1;

Figure 3 is a perspective view of the stopper-carried contact strips-and their supporting base;

Figure 4 is .an elevational view of the plug adapted for engagement in the stopper for effecting electrical connection of conductors to the contact strips of Figure 3;

Figure 5 is a top plan view of the device shown in Figure 2 with the stopper and heater removed;

Fi ure 6 is an enlarged fragmentary longitu inal sectional view of the nozzle and valve for the outlet hose of the syringe shown in Figure 2;

Figure 7 is. a view partly in elevation and partly in section showing the stopper and heater of Figure 1 used as an air heat- 111g flask; and

Figure 8 is a detail sectional view showing a plug or stopperconstruction associated with one of the respective nipples;

lteferring more in detail to the drawing, 5 indicates an externally threaded stopper adapted to be removably threaded into the lilling opening neck 6 of a receptacle 7 which 1s shown in the nature of a flask capable of forming a hot water container or the fountain of a syringe.

The stopper 5 is formed with a relatively large central opening in which is tightly f tted or secured a metallic tube 8 which is rigidly joined at its lower end to'the upper end of a hollow metal plug or capped sleeve 9. The tube 8 is disposed centrally of the upper end wall or cap of sleeve 9 and is of smaller diameter than the latter so that the cap or upper end wall of sleeve 9 abuts the inner or lower end of the stopper 5 about the central opening of the latter as shown clearly in Fi re 1.

The sleeve 9 slidably fits, at its lower end portion, in upper part of a tubular heater casing 10 which is of slightly lesser diameter than the lower smaller end of the closure plug 5 of the receptacle 7 and which has its lower end closed as is clearly shown in Fig ure 1. The casing 10 and plug 9 are detachably joined by means of a threaded connection between their upper ends as generally indicated at 11, and removably disposed within the casing 10 is an electrical resistance element generally indicated at 12 and having a head piece 13 which is engaged by the lower end of the sleeve 9 so as to hold the resistance element firmly in place against vertical vibration.

Tightly fitted in the lower end of the tube 8 is a base member 14 of insulatin material and preferably of relatively thic disk-like form as shown in Figures 1 and 3, and extending through as well as projecting upwardly from the base 14 is a pair of spaced resilient contact fingers or strips 15, the upper ends of which are inturned but in spaced relation as indicated at 16. The lower ends of the cont-act stri s 15 extend throu h the base 14 and terminate in outturne lower ends bearing against the under stopper so as to permit the device to be read,

surface of the base 14: and equipped with binding screws 17 by means of which the terminal wires 18 of the resistance element 12 are respectively attached to the contact strips 15.

Removably slidably fitted inthe upper end portion of the tube 8 is a cylindrical hollow plug element 19 of insulating material and this plug element is formed with a socket opening through the lower end thereof and within which is arranged a pair of spaced contact strips 20. The strips 20 are arranged and countersunk in opposite sides of the wall of the bore of plug niember ll) so as to engage the contact strips 15 when said plug element 19 is inserted in the stopper 5 an its bearing tube 8. The inturned ends 16 of the strips 15 insure the passage of the contact strips 20 into engagementwith the outer sides of the strips 15 The contact strips 20 projct through the upper end of the plug element 19 and ter-' minate in outwardly directed. uppeii ends equipped with screws 21 for, connection of the respective conductors 22 of an attachment cord thereto. It will thus be seen that when the lugelement 19 is inserted in the bearing tu e 8 electrical connection is had between the conductors 22 of the attachment cord and the respective terminal wires 18 of the resistance element so that the latter will become effectively heated when the conductors 22 are connected at their other ends with a source of electricity. The connection of the conductors 22 with a source of elec-- tricity is of an attac end of the attachment cord formed by conductors 22 and adapted to be plugged into preferably had through the use a suitable wall or lamp socket of a house wiring system.

The upper end of the plug element'19,

be seen that when the device is employed in connection with the stopper of a hotiwater flask or the fountain of a fountain syringe, the water may be efiectively heated and then the plug element 19 detached from the ily handled without interference by the attachment cord being connected thereto. It will also be seen that the heater is bodily carried by the stopper 5 and is insertable through the neck 6 of the receptacle 7 or capable of being withdrawn from the latter when the stopper 5 is removed.

When adapting the'device to a fountain syringe, the neck 6 is preferably provided with a hot water outlet passage. 24 at one side of the filling opening in the neck and ment plug connected to the other aeeaaee opening through the adjacent side of. the latter where itis equipped with a nipple 25' to which is connected one end of the outlet hose 26. The outer or other end of the hose 26 is equipped with a nozzle 27, the inner portion of'which is'enlarged as at 28 and provided with a cylindricalbore in which is longitudinally slidable a cylindrical valve element, 29. The valve element 29 is provided with a reduced stem 30 slidably extending through a removable screw cap 31, provided upon the inner end of nozzle part 28, and detachably connected to a nipple 32 to which the other end of the hose 26 is attached. The passage of the nipple 32 communicates witha passage in the stem '30 and this passage is bifurcated or branched in the valve element or body 29 proper sons to open through theouter end of the latter at opposite sides of its longitudinal center where it is provided with a projecting head or plug 33. Thus, when the nozzle 27 is slid outwardly on and relative to the valve element 29, the head is withdrawn from the bore in the outer end portion of nozzle 27 and the outer end of valve element 29. is disposed in spaced relation to the shoulder 34 at the outer 'endyof the'enlarged portion 28 of nozzle 27 whereby the water may freely flow from the hose 26'through the nozzle. ()n the other hand, by sliding the nozzle 27 inwardly on the valve element 29 the head 33 will be caused to enter the bore of the outer end portion of nozzle 27 so as to close the latter and prevent further outward flow of the water. The receptacle or flask 7 of this fountain syrin e is preferably equipped with means 35 for acilitating suspension thereof at an elevated point.

, The construction will be substantially as above described in confiection with water bottles, except that the latter will not. be provided with a water outlet passage 24 or nipple 25, and the hose 26 and nozzle 27 will accordingly be dispensed with.

The bottle or receptacle 7 is also intended to be used as an air heater and provision is made for a circulation of air through the receptacle, one side thereof adjacent its lower end as shown in Figures 2 and 7 having a nipple 25* similar to the nipple 25 at the upper end or neck portion of the receptacle, and asshown in Figure 7, a modified form of heater to be substituted for the heater shown in Figure 1 is' disclosed. A spool 40 of insulating material is suspended from the block 14 and below the sleeve 9 while the conductor wires 17 and 18 leading to the spoolhas one section thereof coiled externally of the spool as shown in Figure 7 while the other section of the wire extends upwardly through an axial bore in the spool, the source of energy communicating with the conductors 17 and 18 in the same manner as described in connec- HO v means tion with Figure 1. The tubular casing 10 as shown in Figure 1 is removed and the casin 10 shown in Figure 7 is substituted there or, the casing 10 having perforations 36 therein to permit the free circulation of air within the receptacle 7 in contact with the resistance element coiled around the spool 40.

When the device is to be used as a water heater with the type of resistance element shown in Figure 1, provision is made for closing the nipple 25 and the valved stopper for closing the nipple is shown in detail in Figure 7. The stopper 41 having an axial bore 37 is placed into the nipple 25 at the outer end 38 thereof and said stopper 41 carries a disk ring 42 adj acent its outer end that engages the outer beaded edge of the nipple 25 to limit inward movement of the stopper. The peripheral edge of the disk ring 42 is threaded for the reception of a cap member for controlling passage through the bore 37 in the stopper 41. The cap 39 that is threaded on the disk ring 42 has an' end wall 43 that is centrally dished 218181) {in line with the stopperbore 37 to he moi'ged into engagement with the outer end of the stopper for closingthe outer end of the bore. The end wall 43 of the cap 39 is provided with openings 45 laterally of the centrally dished portion 44 to permit communication between the interior of the receptacle 7 and the atmosphere when the cap 29 is moved away from the stopper 41.

When it is desired to use the receptacle as a device for heating air, the casing 10 shown in Figure 7 is substituted for the easing 10 shown in Figure 1, while the type of heat resisting element shownin Figure 7 is als utilized, and the flexible tubing 26 and valve head 28 is removed from the nipple 25 and a stopper 41 may be substituted therefor in a manner similar to the stopper associated with the nipple 25. By moving the cap 39 outwardly of each stopper 41 at opposite ends of the receptacle 7, air will be permitted to freely circulate throu h the receptacle and be heated. If desired, both caps 39 may be closed and the temperature of the receptacle raised to a comparatively high degree. Also, the stopper and cap associated with the nipple 25 may be employed when the type of heater shown in Figure 1 is employed for the purpose of heating water and the cap 39 with its stopper 41 upon the nipple 25 may be so manipulated as to control the flow of water from the receptacle when the same is used as a fountain syringe. Obviously, by utilizing the flask as a core for a pad or by wrapping the flask in a towel, a dry heated pad may be had for various uses where a hot water bottle is not required. It is evident that the stopper 5 and a heater carried thereby constitute a heating means capable of general use and not particularly limited for use in connection with. any particular'type of receptacle.

From the above detailed description it is believed that the construction and opera-- tion of the invention will at once be apsulating base fixed within the lower end of said opening and having ap'air of spaced contact strips projecting upwardly therefrom within said opening, a resistance carrying casing attached to the lower end of said member and having the terminal wires of its resistance connected to the respective contact strips, and a plug member removably fitted in said opening above the insulating base and provided with a pair of internal longitudinal contact strips respectively engageable with said first named contact strips and adapted to have conductors connected to the upper ends thereof.

2. In combination, a stopper formed with a central lon itudinal opening, a air of contact strips insulated from each ot er and supported in said opening, a plug member removabl disposed in the opening and having a soc eted lower end having spaced longitudinal contact strips therein enga cable with the outer sides of the first name contact strips, means to connect the ends of conductors to the upper ends of the second named contact strips, and a resistance element mounted upon the lower end of the stopper and having terminal wires connected to the lower ends of the first named contact strips.

3. In combination, a stopper formed with a central longitudinal opening, a pair of contact strips insulated from each other and supported in said opening, a plug'member removabl disposed in the opening and having a sec eted lower end having spaced longitudinal contact strips therein engageable .with the outer sides of the first named coni eeeeee engaging the upper end of the stopper, and

said opening, a. hollow plug member remov- & resistance element suspended from the ehly fitted in the opening and having internal contact strips engageahle with the outer stopper and'having terminal Wires connected m V to the first named COIllIfiCt strips,

In testimony whereof I affix my signature.

EDWARD l/VUJCIECHOWSKI.

sides of the first named Contact strips, said plug member having an upwardly projecting end, and a protecting cap removably engaged with said end of the plug member and 

